CN109417341A - The end construction and its manufacturing method of the rotor of motor - Google Patents
The end construction and its manufacturing method of the rotor of motor Download PDFInfo
- Publication number
- CN109417341A CN109417341A CN201680087224.8A CN201680087224A CN109417341A CN 109417341 A CN109417341 A CN 109417341A CN 201680087224 A CN201680087224 A CN 201680087224A CN 109417341 A CN109417341 A CN 109417341A
- Authority
- CN
- China
- Prior art keywords
- rotor
- column
- loop device
- reinforcement structure
- end construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 230000002787 reinforcement Effects 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0012—Manufacturing cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/168—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having single-cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of end construction (102) of the rotor for motor can be attached to the end of rotor (100).End construction (102) includes loop device (104) and at least partly at least one reinforcing mechanisms (106) in loop device (104), the rotary shaft (112) of the loop device (104) are parallel with the rotary shaft of rotor (100) stacked.The value of the tensile strength of at least one reinforcement structure (106) is higher than the value of the tensile strength of loop device (104).
Description
Technical field
The present invention relates to the end construction of the rotor of motor and its manufacturing methods.
Background technique
Direct-on-line synchronous reluctance motor (direct-online synchronous reluctance motor, DOL
SynRM rotor) needs end ring in two ends that rotor stacks.Traditional induction conductivity (induction motor,
IM it) also manufactures in a similar way.DOL SynRM rotor has masking plate and the end ring against its casting.However, in motor
End ring is under huge stress during operation and end ring may be broken due to stress.
Accordingly, there exist the demands for improving rotor.
Summary of the invention
The present invention is intended to provide improvement associated with rotor.According to an aspect of the present invention, such as claim 1 is provided
The end construction of the rotor for motor.
According to another aspect of the present invention, the rotor of motor as claimed in claim 10 is provided.
According to another aspect of the present invention, motor as claimed in claim 11 is provided.
According to another aspect of the present invention, the end knot of rotor of the manufacture as claimed in claim 12 for motor is provided
The method of structure.
The present invention has the advantage that.Due to reinforcing, rotor structure becomes stronger, this can make the range of speeds of motor wider.
Detailed description of the invention
Referring to attached drawing, only as an example, example embodiment of the invention is described below, in the accompanying drawings:
Figure 1A and Figure 1B shows the example of the end construction of the rotor for motor；
Fig. 2A and Fig. 2 B shows the example in the case where reinforcement structure includes at least one curved bar；
Fig. 3 A to Fig. 3 D shows the example in the case where reinforcement structure includes at least one stiffening plate；
Fig. 4 shows the example of the end ring at least one column (stud) and curved bar；
Fig. 5 shows the example of induction machine；And
Fig. 6 shows the example of the flow chart of manufacturing method.
Specific embodiment
Following embodiment is only used as example.Although specification can quote "one" embodiment in several positions,
But this not necessarily indicates that each such reference is to be only applicable to single embodiment party for identical embodiment or feature
Formula.The single feature of different embodiments can also be combined to provide other embodiments.In addition, word "comprising"
With " comprising " should be understood that not by described embodiment be limited to only by it has been mentioned that those of feature form, and
Such embodiment can also include the feature/structure being also not specifically mentioned.
Although they are only to show some structures and/or function it should be noted that attached drawing shows various embodiments
The simplification figure of energy entity.It is apparent to those skilled in the art that the device of description can also include removing to retouch in attached drawing and text
Other function and structure other than those of stating.It should be understood that details and the practical invention of some function and structures not phase
It closes.Therefore, it does not need to carry out more detail discussion to it here.
In the prior art, since the end ring of casting is propping up in addition to cage bar (cage bar) and ring itself without any other
Against smooth surface in the case where bearing member, therefore end ring may be broken.In IM motor, the case where casting high-speed motor
Under, there is similar problem.In the prior art, it is necessary to utilize separated support ring (separate supporting ring)
Support end ring, separated support ring can be such that production slows down.
Figure 1A and Figure 1B shows the example of the end construction 102 of the rotor 100 for motor, motor can be motor or
Generator.It is a well known fact that motor is used as generator and vice versa.Rotor can be for example for direct
On-line synchronous reluctance motor or generator.Figure 1A shows rotor 100 from side and Figure 1B is the top view of rotor 100.
End construction 102 can be attached at least one end panel 108 of the rotor 100 of stacking or be attached to stacking
Rotor 100 is at least one outermost laminated components 114 away from 100 center of rotor.End panel 108 is also referred to as covering
Shield plate (mask plate).End construction 102 includes loop device 104 and at least one reinforcement structure 106, the loop device 104
Rotary shaft 112 with stack the rotary shaft of rotor 100 it is parallel.The combination of loop device 104 and at least one reinforcement structure
It is matrix (matrix).In general, term " matrix " can indicate that mixing two distinct types of substance or structure makes a kind of object
Matter or structure surround another substance or structure.If there is the substance or structure more than two kinds, then at least two in them
Realize previous condition.In general, the mixing of at least two substance or structure is deterministic.The material of end construction 102
It can be stainless steel, electrical sheet or any other structurally reasonable material.Matrix can also refer to compound.
At least one reinforcement structure 106 can be attached to the end of rotor 100.
At least one reinforcement structure 106 is at least partly in loop device 104.Loop device 104 can be cast into so that
At least one reinforcement structure 106 is at least partly in loop device 104.The value of the tensile strength of at least one reinforcement structure 106
Higher than the value of the tensile strength of loop device 104.In other words, the value of the tensile strength of the material of at least one reinforcement structure 106 is high
In the value of the tensile strength of the material of loop device 104.The material of at least one reinforcement structure 106 can be such as steel.Loop device
104 material can be such as aluminium, aluminium compound, copper, gold, silver.
In embodiments, reinforcement structure 106 may include that at least one column 106 ' is (visible a plurality of types of in Figure 1A
Column).At least one column 106 ' can be attached to the end panel 108 of the rotor 100 of stacking or be attached to the rotor 100 of stacking
Outermost layer laminated components 114.The longitudinal axis of at least one column 106 ' can be at least less parallel of rotary shaft 112 of rotor 100.Extremely
The longitudinal axis of a few column 106 ' can be with the normal N at least less parallel of end panel 108.
Column 106 ' in insertion end panel 108 gives additional bearing to the loop device 104 that can be used as end ring.Column 106 '
Some axial and radial forces of loop device 104 can be transmitted in column 106 '.
In the embodiment that its example is shown in fig. 2, reinforcement structure 106 may include at least one curved bar 200.
Each of at least one curved bar 200 can and at least two columns 106 ' connection and attachment.Here term bar indicates directly
Or curved solid piece of material.The length of bar 200 is greater than its thickness.Bar 200 is also rigid, and it is used as filling for ring
Set 104 mechanical bearings.
In the embodiment that its example is shown in fig. 2b, curved bar 200 can be the rotary shaft 112 of surrounding rotor 100
Ring structure.
In the embodiment that its example is shown in figure 1A, at least one column 106 ' can be inserted into end panel 108 or
In the hole 116 of outermost layer laminated components 114.It the section in hole 116 can be with the cross-sections match of column 106 '.In this case, hole
116 diameter can be at least approximate equally big with the diameter of column 106 '.
In embodiments, at least one column 106 ' can have screw thread.In embodiments, it is used for the hole 116 of column 106 '
There can be screw thread.In embodiments, the screw thread of column 106 ' and the screw thread for being intended to the hole 116 that column 106 ' is inserted can be phase
When so that column 106 ' can be screwed into hole 116.
The end panel 108 of DOL SynRM has post holes 116 for using later.Those holes 116 or additional drilling
116 can be used to be inserted into short steel column 106 ' in end panel 108 to generate for (or the end ring shown in Fig. 4 of loop device 104
400) it is maintained at the basis in somewhere.Compared with the smooth ends plate of the DOL SynRM of the prior art, this is mentioned to loop device 104
Better base portion is supplied.Because column 106 ' does not extend to the overall length of rotor 100, cage structure is not formed with column 106 '.
Column 106 ' can be length and just extend at least on the direction parallel with the rotary shaft 112 of rotor 100 from loop device 104 enough
One end panel 108 extends at least one external laminated components 114, at least one described external laminated components 114 are located at
Between end panel 108 and the centre of the stacking of rotor 100.
In its example in the embodiment shown in Fig. 3 A to Fig. 3 D, reinforcement structure 106 may include that tool is perforated
At least one stiffening plate 300,302 or at least one reinforcement silk screen 300,302 made of silk (wire).Add using multiple
When strong plate and/or piece 300,302, stiffening plate/silk screen 300,302 can use washer (not shown) and be separated from each other.Washer
Column 106 ' can be attached to.Washer provides space between stiffening plate/silk screen 300,302, so that the loop device of end construction 102
It 104 more loose grounds and is evenly distributed.In embodiments, the mold when material that washer can be loop device 104 is cast
Bottom.That is, washer can keep stiffening plate/silk screen 300,302 on mold bottom, and then by stiffening plate/
Silk screen 300,302 stays in the inside of the loop device 104 of casting.
Fig. 3 B shows silk silk screen intersected with each other.Fig. 3 C shows the silk screen with Uncrossed straight silk each other.Fig. 3 D shows
Provide the stiffening plate 300,302 in hole 310.That is, stiffening plate 300,302 can be perforated.Stiffening plate 300,302 can be with
Including such as metal, carbon fiber and/or ceramic material.Silk screen may include the metal for being for example covered with carbon fiber or ceramic material
Silk.
In general, stiffening plate 300,302 can be made to prevent the problem related to inductance of electrician's steel or stainless steel.
At least one stiffening plate 300,302 can bear some axial and radial forces of loop device 104, and because at least
One stiffening plate 300,302 is more rigid body, so it is stronger.Power can be transferred to layer by least one stiffening plate 300,302
Pressure stacks and/or is transferred to end panel 108.
At least one stiffening plate 300,302 can be pre-fabricated.Then rotor stacking can quickly be made at this
It makes.
Fig. 4 shows the section of the half of rotor 100.In embodiments, loop device 104 may include end ring 400.Ring dress
Set 104 to be also possible to such as lower loop 400: it merges column 106 ' and potential curved bar 200 in end ring 400.Loop device 104
It may include at least one reinforcement structure 106 at least partly in end ring 400.At least one reinforcement structure 106 can be down to
Small part is cast in end ring 400.Reinforcement structure 106 may include can be surrounding rotor 100 rotary shaft 112 it is entire
The curved bar 200 of ring.Curved bar 200 or ring can with those are similar shown in Fig. 2A and Fig. 2 B.
The bearing curved bar 200 being made of high strength steel can be installed, then the bearing curved bar 200 utilizes is mounted on end
Column 106 ' in plate 108 or at least one laminated components 114 is maintained at proper position.End panel 108 is not required, this
It is because column 106 ' also may be added to traditional layered product.Loop device 104 can be various sizes and shape like ring knot
Structure.The design like net can also be made to loop device 104.
Fig. 5 shows the example of induction conductivity (IM).Alternatively, example also refers to influence generator.Conductive bar
500 (oblique lines) and ring structure 104 or end ring 400 form the cage-shaped structure of induction conductivity/generator rotor 100
(squirrel cage).For IM, its speed is not considered, and there is no the demands to independent rotation end ring and installation support ring.
Furthermore it is possible in this way production High Speed I M make substantially its from traditional IM rotor casting different.Can only it exist
Some are added to cause to reinforce in the top and bottom part of laminated stack.
In the case where DOL SynRM, base structure 104 strengthens rotor 100 to make the revolving speed of wider scope become
It may.The maximum (top) speed of rotor 100 can be higher than the prior art.It manufactures such rotor and is also made without difference with IM.
Fig. 6 is the flow chart for manufacturing the method for rotor 100.In step 600, at least one reinforcement structure 106 is positioned
In the end of rotor 102.In step 602, the loop device 104 of end construction 102 is arranged to connect with the end of rotor 100
Touching, and at least one reinforcement structure 106 is arranged to the rotation of ring device 104 at least partly in loop device 104
Axis 112 is parallel with the rotary shaft of rotor 100 stacked, and the value of the tensile strength of at least one reinforcement structure 106 is higher than loop device
The value of 104 tensile strength.
In step 600, at least one reinforcement structure 106 can be attached to the rotor 100 of stacking end panel 108 or
Person's outermost layer laminated components 114.In general, at least one reinforcement structure 106 can also be attached under outermost layer laminated components 114
One or more laminated components.However, at least one reinforcement structure 106 is restricted to be not passed through rotor 102.
It is apparent to those skilled in the art that can realize inventive concept in various ways with technological progress.This hair
Bright and embodiments thereof are not limited to example described above embodiment but can change within the scope of the claims.
Claims (12)
1. a kind of end construction of the rotor for motor, which is characterized in that the end construction (102) can be attached to described
The end of rotor (100), and the end construction (102) includes loop device (104) and at least partly in the loop device
(104) at least one reinforcement structure (106) in, the rotary shaft (112) of the loop device (104) and the rotor stacked
(100) rotary shaft is parallel, and the value of the tensile strength of at least one reinforcement structure (106) is higher than the loop device (104)
Tensile strength value.
2. end construction according to claim 1, which is characterized in that the reinforcement structure (106) includes at least one column
(106 '), at least one described column (106 ') can be attached to the rotor (100) of stacking end panel (108) and/or
Person can be attached to the outermost layer laminated components (114) of the rotor (100) of stacking, at least one column (106 ') is indulged
The rotary shaft (112) at least less parallel of axis and the rotor (100).
3. end construction according to claim 1, which is characterized in that the reinforcement structure (106) includes at least one song
Bar (200).
4. end construction according to claim 2, which is characterized in that at least one described column (106 ') is inserted into described
In the hole (116) of end panel (108) and/or the outermost layer laminated components (114), the section of the hole (116) and the column
The cross-sections match of (106 ').
5. end construction according to claim 1, which is characterized in that the reinforcement structure (106) includes that tool is perforated
At least one stiffening plate (300,302).
6. end construction according to claim 5, which is characterized in that the perforated multiple stiffening plates (300,302) of tool with
At least one column (106 ') is attached at multiple positions of the longitudinal axis along at least one column (106 ').
7. end construction according to claim 1, which is characterized in that the reinforcement structure (106) includes at least one silk
Net.
8. end construction according to claim 7, which is characterized in that multiple reinforcement silk screens (300,302) and at least one
Column (106 ') is attached at multiple positions of the longitudinal axis along at least one column (106 ').
9. end construction according to claim 1, which is characterized in that the loop device (104) include end ring (400) and
At least one described reinforcement structure (106) is at least partly cast in the end ring (400).
10. a kind of rotor of motor, which is characterized in that the rotor (100) includes end construction according to claim 1
(102)。
11. a kind of motor, which is characterized in that the motor includes having end construction according to claim 1 (102)
Rotor (100).
12. a kind of method of rotor manufacturing of electric machines, which is characterized in that
At least one reinforcement structure (106) is positioned into (600) in the end of the rotor (102)；
Loop device (104) arrangement (602) of end construction (102) is contacted at the end of the rotor (100), and
At least one described reinforcement structure (106) is arranged at least partly in the loop device (104), the loop device
(104) rotary shaft (112) is parallel with the rotary shaft of the rotor (100) stacked, at least one described reinforcement structure (106)
Tensile strength value be higher than the loop device (104) tensile strength value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2016/065562 WO2018001524A1 (en) | 2016-07-01 | 2016-07-01 | End structure of rotor of electric machine and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109417341A true CN109417341A (en) | 2019-03-01 |
| CN109417341B CN109417341B (en) | 2020-11-27 |
Family
ID=56321948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680087224.8A Active CN109417341B (en) | 2016-07-01 | 2016-07-01 | End structure of rotor of motor and manufacturing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10790715B2 (en) |
| EP (1) | EP3479463B1 (en) |
| CN (1) | CN109417341B (en) |
| WO (1) | WO2018001524A1 (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1156364A (en) * | 1915-02-25 | 1915-10-12 | Burton Mccollum | Induction-motor. |
| US3194996A (en) * | 1963-03-19 | 1965-07-13 | Westinghouse Electric Corp | Induction motor rotor |
| GB1060628A (en) * | 1963-12-13 | 1967-03-08 | Mavilor | Dynamo electrical machines |
| EP0557368B1 (en) * | 1990-11-14 | 1994-09-28 | Aalborg Portland A/S | Magnetic cement-bound bodies |
| JP2000232760A (en) * | 1999-02-09 | 2000-08-22 | Fuji Electric Co Ltd | Rotor for squirrel-cage induction machine |
| US20090267432A1 (en) * | 2008-04-25 | 2009-10-29 | A. O. Smith Corporation | Assembly for an electric machine |
| CN102510195A (en) * | 2011-11-03 | 2012-06-20 | 无锡欧亚精密冲压件有限公司 | Squirrel-cage type induction motor rotor |
| CN202374144U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Structure for protecting copper end ring of high-speed motor rotor |
| US20130154430A1 (en) * | 2011-12-15 | 2013-06-20 | Andrew Dragon | Induction rotor retention structure |
| EP2779384A2 (en) * | 2013-03-15 | 2014-09-17 | Ingersoll-Rand Company | High speed induction electrical machine |
| KR20150035227A (en) * | 2013-09-27 | 2015-04-06 | 한국델파이주식회사 | Spool structure of alternator for vehicle |
| DE102015204872A1 (en) * | 2014-10-09 | 2016-04-14 | Robert Bosch Gmbh | Squirrel cage rotor for an electric asynchronous machine with a short-circuit ring stabilizing tie rods |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828152A (en) * | 1995-02-07 | 1998-10-27 | Denyo Kabushiki Kaisha | Rotor with permanent magnet of generator and method of manufacturing the same |
| US9973067B2 (en) * | 2014-04-04 | 2018-05-15 | GM Global Technology Operations LLC | Rotor casting |
| US10630151B2 (en) * | 2017-06-29 | 2020-04-21 | GM Global Technology Operations LLC | Rotor for an induction motor |
| US10680476B2 (en) * | 2018-01-25 | 2020-06-09 | Baker Hughes, A Ge Company, Llc | Systems and methods for constructing permanent magnet motors having increased power density |
-
2016
- 2016-07-01 CN CN201680087224.8A patent/CN109417341B/en active Active
- 2016-07-01 EP EP16734371.4A patent/EP3479463B1/en active Active
- 2016-07-01 US US16/314,717 patent/US10790715B2/en active Active
- 2016-07-01 WO PCT/EP2016/065562 patent/WO2018001524A1/en unknown
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1156364A (en) * | 1915-02-25 | 1915-10-12 | Burton Mccollum | Induction-motor. |
| US3194996A (en) * | 1963-03-19 | 1965-07-13 | Westinghouse Electric Corp | Induction motor rotor |
| GB1060628A (en) * | 1963-12-13 | 1967-03-08 | Mavilor | Dynamo electrical machines |
| EP0557368B1 (en) * | 1990-11-14 | 1994-09-28 | Aalborg Portland A/S | Magnetic cement-bound bodies |
| JP2000232760A (en) * | 1999-02-09 | 2000-08-22 | Fuji Electric Co Ltd | Rotor for squirrel-cage induction machine |
| US20090267432A1 (en) * | 2008-04-25 | 2009-10-29 | A. O. Smith Corporation | Assembly for an electric machine |
| CN102510195A (en) * | 2011-11-03 | 2012-06-20 | 无锡欧亚精密冲压件有限公司 | Squirrel-cage type induction motor rotor |
| US20130154430A1 (en) * | 2011-12-15 | 2013-06-20 | Andrew Dragon | Induction rotor retention structure |
| CN202374144U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Structure for protecting copper end ring of high-speed motor rotor |
| EP2779384A2 (en) * | 2013-03-15 | 2014-09-17 | Ingersoll-Rand Company | High speed induction electrical machine |
| KR20150035227A (en) * | 2013-09-27 | 2015-04-06 | 한국델파이주식회사 | Spool structure of alternator for vehicle |
| DE102015204872A1 (en) * | 2014-10-09 | 2016-04-14 | Robert Bosch Gmbh | Squirrel cage rotor for an electric asynchronous machine with a short-circuit ring stabilizing tie rods |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018001524A1 (en) | 2018-01-04 |
| EP3479463B1 (en) | 2020-11-18 |
| EP3479463A1 (en) | 2019-05-08 |
| CN109417341B (en) | 2020-11-27 |
| US10790715B2 (en) | 2020-09-29 |
| US20190348880A1 (en) | 2019-11-14 |
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